xxv DATING & CLASSIFICATION OF THE CHURCHES 335 fourteenth century3 the alterations made in S. Saviour in the Chora (c. 1300)5 and the parecclesion of the Pam-makaristos (r. 1315). This was the last effort of pure Byzantine architecture in Constantinople. During the hundred years preceding the Turkish conquest in 1453 the gradually increasing pressure from the East put a stop to all architectural schemes ; the craftsmen and artists fled to Italy, and there took their part in the great revival known as c The Renaissance.' SUGGESTED CHRONOLOGICAL TABLE Century. V. S. John of the Studion, 463. VI. SS. Sergius and Bacchus, 527-36. S. Sophia, 532-37. S. Saviour in the Chora (the Justinian foundation). S. Andrew in Krisei. VIII. S. Irene, 740. S. Mary Panachrantos (South Church); possibly earlier. S. Mary Pammakaristos ; possibly earlier. IX. S. Theodosia. S. Mary Diaconissa. SS. Peter and Mark. X. The Myrelaion. S. Mary Panachrantos (South Church). XL S. Thekla. S. Saviour in the Chora (restoration in the reign of Alexius I. Comnenus). S. Saviour Pantepoptes. S. Saviour Pantokrator. XII. S.Theodore. S. John in Trullo. Refectory of the monastery of Manuel ? Bogdan Serai ? XIII. S. Marjr of the Mongols. Monastir Jamissi. XIV. S. Saviour in the Chora., 1306. Final restoration by Theodore Metochites. Parecclesion of the church of S. Mary Pammakaristos, c. 1315. Sanjakdar Mesjedi (Gastria) ? Balaban Mesjedi ?